linux-kernel - Re: [RFC][PATCH 0/9] perf trace: support for general-purpose scripting

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Date:	Tue, 06 Oct 2009 23:01:20 -0500
From:	Tom Zanussi <tzanussi@...il.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org, fweisbec@...il.com,
	rostedt@...dmis.org, lizf@...fujitsu.com, hch@...radead.org
Subject: Re: [RFC][PATCH 0/9] perf trace: support for general-purpose
 scripting

On Tue, 2009-10-06 at 11:09 +0200, Ingo Molnar wrote:
> * Tom Zanussi <tzanussi@...il.com> wrote:
> 
> > Known problems/shortcomings:
> > 
> > Probably the biggest problem right now is the sorting hack I added as 
> > the last patch.  It's just meant as a temporary thing, but is there 
> > because tracing scripts in general want to see events in the order 
> > they happened i.e. timestamp order. [...]
> 
> Btw., have you seen the -M/--multiplex option to perf record? It 
> multiplexes all events into a single buffer - making them all ordered. 
> (The events are in causal ordering in this case even if there's some TSC 
> asynchronity)
> 

No, I didn't know about that - thanks for letting me know.

Tom

> 	Ingo

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